From 3d9a7181e40d99226984f28ada3dad3956ce57e7 Mon Sep 17 00:00:00 2001 From: Shijith Thotton Date: Tue, 4 May 2021 05:57:12 +0530 Subject: [PATCH] event/cnxk: support timer Add event timer adapter a.k.a TIM initialization on SSO probe. Signed-off-by: Pavan Nikhilesh Signed-off-by: Shijith Thotton --- doc/guides/eventdevs/cnxk.rst | 6 ++++ drivers/event/cnxk/cnxk_eventdev.c | 3 ++ drivers/event/cnxk/cnxk_eventdev.h | 2 ++ drivers/event/cnxk/cnxk_tim_evdev.c | 47 +++++++++++++++++++++++++++++ drivers/event/cnxk/cnxk_tim_evdev.h | 44 +++++++++++++++++++++++++++ drivers/event/cnxk/meson.build | 1 + 6 files changed, 103 insertions(+) create mode 100644 drivers/event/cnxk/cnxk_tim_evdev.c create mode 100644 drivers/event/cnxk/cnxk_tim_evdev.h diff --git a/doc/guides/eventdevs/cnxk.rst b/doc/guides/eventdevs/cnxk.rst index 84c8519372..eb1453c263 100644 --- a/doc/guides/eventdevs/cnxk.rst +++ b/doc/guides/eventdevs/cnxk.rst @@ -35,6 +35,10 @@ Features of the OCTEON cnxk SSO PMD are: - Open system with configurable amount of outstanding events limited only by DRAM - HW accelerated dequeue timeout support to enable power management +- HW managed event timers support through TIM, with high precision and + time granularity of 2.5us on CN9K and 1us on CN10K. +- Up to 256 TIM rings a.k.a event timer adapters. +- Up to 8 rings traversed in parallel. Prerequisites and Compilation procedure --------------------------------------- @@ -101,3 +105,5 @@ Debugging Options +===+============+=======================================================+ | 1 | SSO | --log-level='pmd\.event\.cnxk,8' | +---+------------+-------------------------------------------------------+ + | 2 | TIM | --log-level='pmd\.event\.cnxk\.timer,8' | + +---+------------+-------------------------------------------------------+ diff --git a/drivers/event/cnxk/cnxk_eventdev.c b/drivers/event/cnxk/cnxk_eventdev.c index 0f084176c8..85bb12e006 100644 --- a/drivers/event/cnxk/cnxk_eventdev.c +++ b/drivers/event/cnxk/cnxk_eventdev.c @@ -582,6 +582,8 @@ cnxk_sso_init(struct rte_eventdev *event_dev) dev->nb_event_queues = 0; dev->nb_event_ports = 0; + cnxk_tim_init(&dev->sso); + return 0; error: @@ -598,6 +600,7 @@ cnxk_sso_fini(struct rte_eventdev *event_dev) if (rte_eal_process_type() != RTE_PROC_PRIMARY) return 0; + cnxk_tim_fini(); roc_sso_rsrc_fini(&dev->sso); roc_sso_dev_fini(&dev->sso); diff --git a/drivers/event/cnxk/cnxk_eventdev.h b/drivers/event/cnxk/cnxk_eventdev.h index abe36f21f1..1c61063c93 100644 --- a/drivers/event/cnxk/cnxk_eventdev.h +++ b/drivers/event/cnxk/cnxk_eventdev.h @@ -14,6 +14,8 @@ #include "roc_api.h" +#include "cnxk_tim_evdev.h" + #define CNXK_SSO_XAE_CNT "xae_cnt" #define CNXK_SSO_GGRP_QOS "qos" #define CN9K_SSO_SINGLE_WS "single_ws" diff --git a/drivers/event/cnxk/cnxk_tim_evdev.c b/drivers/event/cnxk/cnxk_tim_evdev.c new file mode 100644 index 0000000000..46461b8858 --- /dev/null +++ b/drivers/event/cnxk/cnxk_tim_evdev.c @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(C) 2021 Marvell. + */ + +#include "cnxk_eventdev.h" +#include "cnxk_tim_evdev.h" + +void +cnxk_tim_init(struct roc_sso *sso) +{ + const struct rte_memzone *mz; + struct cnxk_tim_evdev *dev; + int rc; + + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return; + + mz = rte_memzone_reserve(RTE_STR(CNXK_TIM_EVDEV_NAME), + sizeof(struct cnxk_tim_evdev), 0, 0); + if (mz == NULL) { + plt_tim_dbg("Unable to allocate memory for TIM Event device"); + return; + } + dev = mz->addr; + + dev->tim.roc_sso = sso; + rc = roc_tim_init(&dev->tim); + if (rc < 0) { + plt_err("Failed to initialize roc tim resources"); + rte_memzone_free(mz); + return; + } + dev->nb_rings = rc; + dev->chunk_sz = CNXK_TIM_RING_DEF_CHUNK_SZ; +} + +void +cnxk_tim_fini(void) +{ + struct cnxk_tim_evdev *dev = tim_priv_get(); + + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return; + + roc_tim_fini(&dev->tim); + rte_memzone_free(rte_memzone_lookup(RTE_STR(CNXK_TIM_EVDEV_NAME))); +} diff --git a/drivers/event/cnxk/cnxk_tim_evdev.h b/drivers/event/cnxk/cnxk_tim_evdev.h new file mode 100644 index 0000000000..5ddc94ed4c --- /dev/null +++ b/drivers/event/cnxk/cnxk_tim_evdev.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(C) 2021 Marvell. + */ + +#ifndef __CNXK_TIM_EVDEV_H__ +#define __CNXK_TIM_EVDEV_H__ + +#include +#include +#include +#include + +#include +#include +#include + +#include "roc_api.h" + +#define CNXK_TIM_EVDEV_NAME cnxk_tim_eventdev +#define CNXK_TIM_RING_DEF_CHUNK_SZ (4096) + +struct cnxk_tim_evdev { + struct roc_tim tim; + struct rte_eventdev *event_dev; + uint16_t nb_rings; + uint32_t chunk_sz; +}; + +static inline struct cnxk_tim_evdev * +tim_priv_get(void) +{ + const struct rte_memzone *mz; + + mz = rte_memzone_lookup(RTE_STR(CNXK_TIM_EVDEV_NAME)); + if (mz == NULL) + return NULL; + + return mz->addr; +} + +void cnxk_tim_init(struct roc_sso *sso); +void cnxk_tim_fini(void); + +#endif /* __CNXK_TIM_EVDEV_H__ */ diff --git a/drivers/event/cnxk/meson.build b/drivers/event/cnxk/meson.build index b9a8314563..2920722a2f 100644 --- a/drivers/event/cnxk/meson.build +++ b/drivers/event/cnxk/meson.build @@ -16,6 +16,7 @@ sources = files( 'cnxk_eventdev.c', 'cnxk_eventdev_selftest.c', 'cnxk_eventdev_stats.c', + 'cnxk_tim_evdev.c', ) deps += ['bus_pci', 'common_cnxk'] -- 2.20.1